Angle relationships

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What is the angle relationship called when two angles are on opposite sides of a transversal and inside the two lines?

Back

Alternate Interior.

Front

If ∠COB is 124°, what is ∠BOD and how are they related?

Back

∠BOD is 56°, and they are supplementary.

Front

What is the angle relationship called when two angles are on opposite sides of a transversal and outside the two lines?

Back

Alternate Exterior.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

What is the definition of corresponding angles?

Back

Angles that are in the same position on two parallel lines in relation to a transversal.

Front

If two angles are vertical, what can we say about their measures?

Back

They are equal.

Front

What is the relationship between alternate exterior angles when two lines are parallel?

Back

They are equal.

Front

What is the sum of the measures of supplementary angles?

Back

180°.